TROUBLE- SHOOTING

OBSERVED

POSSIBLE

 

PROBLEM

CAUSE

REMEDY

 

 

 

Continued

When ignitor button is pressed, there is spark at ODS/pilot but no ignition

1.Gas supply turned off or manual shutoff valve closed

2.Control knob not in PILOT position

3.Control knob not pressed in while in PILOT position

4.Air in gas lines when installed

5.ODS/pilot is clogged

6.Gas regulator setting is not correct

1.Turn on gas supply or open manual shutoff valve

2.Turn control knob to PILOT position

3.Press in control knob while in PILOT position

4.Continue holding down control knob. Repeat igniting operation until air is removed

5.Clean ODS/pilot (see Cleaning and Mainte- nance, page 23) or replace ODS/pilot assembly

6.Replace gas regulator

24

ODS/pilot lights but

1.

Control knob not fully

1.

Press in control knob

flame goes out when

 

pressed in

 

fully

control knob is

2.

Control knob not

2.

After ODS/pilot lights,

released

 

pressed in long enough

 

keep control knob

 

 

 

 

pressed in 30 seconds

 

3.

Manual shutoff valve

3.

Fully open manual shut-

 

 

not fully open

 

off valve

 

4.

Pilot flame not touching

4.

A) Contact local natural

 

 

thermocouple, which

 

gas company

 

 

allows thermocouple to

 

 

 

 

cool, causing pilot flame

 

B) Clean ODS/pilot

 

 

to go out. This problem

 

(see Cleaning and

 

 

could be caused by one

 

Maintenance, page 23)

 

 

or both of the following:

 

or replace ODS/pilot

 

 

A) Low gas pressure

 

assembly

 

 

B) Dirty or partially

 

 

 

 

clogged ODS/pilot

 

 

 

5.

Thermocouple connec-

5.

Hand tighten until snug,

 

 

tion loose at control

 

then tighten 1/4 turn

 

 

valve

 

more

 

6.

Thermocouple damaged

6.

Replace thermocouple

 

7.

Control valve damaged

7.

Replace control valve

102986

Page 24
Image 24
Desa Tech CGD3018N, CGD3924N, CGD3930N installation manual TROUBLE- Shooting, Maintenance